Optiplex 790 Desktop 2nd HDD

Question

Hello everyone,

I have a Dell Optiplex 790 Desktop. Specs: i5-2400, GT 1030, 8GB Ram, 500gb SSD.

I have a couple questions:

1. Can I replace the DVD drive with a hdd caddy like https://www.ebay.co.uk/itm/2nd-HDD-Optical-DVD-RW-Bay-Caddy-Adapter-12-7mm-to-2-5-HDD-SSD/153526099397?hash=item23bede5dc5:g:OSAAAOSw35ZdEOMO and put in a 2.5 inch HDD? I was reading the manual and it says I can only have 1 HDD internal or external - Is this true?

2. Can I upgrade the i5-2400 to an i7-2600k? And would I need to update BIOS for this - The version is something like 'A18 revision'

Thanks in advance,

Jacob.

chocolatekarma · Answer

If you have the DT 790 then it has a full size 5.25' optical drive, and that adapter won't fit.  You would need a 5.25' to 2.5' adapter.  As for the 2600, yes it will work fine, but a 2600K is pointless, since your motherboard doesn't support overclocking, and can't even be altered to.  The VRM wouldn't be able to cope with it.

stoney_9645 · Answer

Thanks for the answer chocolatekarma you've just saved me £15!

After doing some cleaning on my SSD, I have made the decision not to buy an extra hdd. Instead I want to upgrade the memory - to 16GB ddr3 (I currently have 8gb)

Would the pc3-12800u ram module work in my pc. So I would have 4x4gb pc3-12800u ram sticks...

Thanks for your help so far,

Jacob.

chocolatekarma · Answer

Am I correct to assume you're in the UK? Yes, that RAM will work fine in a 790.  This is what I would buy: https://www.ebay.co.uk/itm/8GB-2-x-4GB-Memory-RAM-for-DELL-OPTIPLEX-3010-390-580-780-790-7900-9010-980-990/383036564616?hash=item592ec22488:g:4-sAAOSwU6RdIGgW

stoney_9645 · Answer

Hello again,

Thanks for making this product recommendation - before I go ahead and buy it, I noticed the speed is 1600mhz and according to https://www.dell.com/support/article/en-uk/sln152123/dell-optiplex-memory-compatibility-guide?lang=en the optiplex 790 can only handle speeds of up to 1333mhz. Will 1600mhz RAM still work on my opitplex?

Thanks for all of your help so far,

Jacob.

chocolatekarma · Answer

It will run fine.  I have 1600 RAM in my 790 also.

Optiplex Desktops

Optiplex 790 Desktop 2nd HDD

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